1. Emergency Department, OLVG Amsterdam, Amsterdam, The Netherlands
2. Section General and Acute Internal Medicine, Department of Internal Medicine, VU University Medical Center, Amsterdam, and The Institute for Cardiovascular Research (ICAR-VU), Vrije Universiteit, Amsterdam, The Netherlands
3. Ambulance Service Amsterdam, Amsterdam, The Netherlands
4. Emergency Department, VU University Medical Center, Amsterdam, The Netherlands
5. Department of Epidemiology & Health Promotion, Public Health Service Amsterdam, Amsterdam, The Netherlands
6. Event Medical Service, Uden, The Netherlands
7. Section Acute Medicine, Department of Internal Medicine, Academic Medical Center, Amsterdam, The Netherlands